Ang mga hindi kinakalawang na asero na hydraulic fitting ay ginagamit upang ikonekta ang mga pipeline, kagamitan, sanitary ware, mga wire at cable at iba pang mga produkto. Nahahati sa socket welding, sinulid na koneksyon, flange na koneksyon, ngunit maaari ding nahahati sa laki ng ulo, casing joints, reducer joints, 90 ° elbow, 45 ° elbow, tee connector, reducer tee connector, four-way connector, reducer tee connector, live joints (valves sa connector), flanges, pipe card.
Stainless steel hydraulic fitting: quick-screw, direct head, butt wire, straight through, direct to the wire (internal wire), internal and external wire butt direct, Pagoda, muffler, elbow, air nozzle elbow, tee, plug, ferrule, all-in-one fitting.